[Bug ada/91169] [10 regression] cd2a31a FAILs

[ebotcazou at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91169

--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
To be more precise, the compiler doesn't correctly deal with an array starting
at index -1 in a CONSTRUCTOR:

  _4 = intarray.F[0]{lb: 4294967295 sz: 1};